scholarly journals Vertical Root Fracture initiation in curved roots after root canal preparation: A dentinal micro-crack analysis with LED transillumination

2017 ◽  
pp. e1218-e1223 ◽  
Author(s):  
R Miguens-Vila ◽  
B Martin-Biedma ◽  
P Varela-Patiño ◽  
M Ruiz-Piñon ◽  
P Castelo-Baz
Keyword(s):  
Root Canal ◽  
Fracture Initiation ◽  
Root Canal Preparation ◽  
Root Fracture ◽  
Crack Analysis ◽  
Vertical Root Fracture

Effects of root canal preparation, various filling techniques and retreatment after filling on vertical root fracture and crack formation

2014 ◽  
Vol 31 (4) ◽  
pp. 302-307 ◽  
Author(s):  
Ismail Davut Capar ◽  
Gokhan Saygili ◽  
Hazal Ergun ◽  
Tuba Gok ◽  
Hakan Arslan ◽  
...  
Keyword(s):  
Root Canal ◽  
Crack Formation ◽  
Root Canal Preparation ◽  
Root Fracture ◽  
Vertical Root Fracture

scholarly journals Evaluation of dentinal micro-cracks caused by the Protaper Universal, Protaper Next and Reciproc rotary file systems used in root canal preparation

2018 ◽  
Vol 8 (3) ◽  
pp. 111-116
Author(s):  
Meltem Deveci Taç ◽  
Sadullah Kaya ◽  
Seda Falakaloğlu
Keyword(s):  
Root Canal ◽  
Crack Formation ◽  
File System ◽  
File Systems ◽  
Root Canal Preparation ◽  
Root Fracture ◽  
Vertical Root Fracture ◽  
Anterior Teeth ◽  
Micro Cracks ◽  
Significant Difference

Objective: In this study, we compared the occurrence of dentinal micro-cracks after use of the ProTaper Universal (Dentsply Maillefer, Ballaigues, Switzerland), ProTaper Next (Dentsply Maillefer), and Reciproc (VDW, Munich, Germany) nickel–titanium rotary file systems in root canal preparation. Method: One hundred mandibular anterior teeth were divided into five groups of 20 specimens each. Group 1 served as a control, with no intervention. In group 2, preparation was performed using the step-back technique and K files. In groups 3–5, root canal preparation was performed using the ProTaper Universal, ProTaper Next, and Reciproc file systems, respectively. Following preparation, specimens were sectioned at 3, 6, and 9 mm using a Minitom precision cut-off machine. The sections were evaluated under a stereomicroscope. The following scoring system was used to rate specimens: 1, no micro-crack; 2, incomplete micro-crack; and 3, vertical root fracture. The results were statistically assessed (p ≤ 0.05). Results: No micro-crack formation was observed in groups 1 and 2. The highest rate of micro-crack formation was observed in specimens prepared with the ProTaper Universal file system (20%), followed by those prepared with the Reciproc (11.7%) and ProTaper Next (6.7%) file systems. However, no significant difference was detected among groups (p > 0.05). In the groups ProTaper Universal and Reciproc files were used, 1 vertical root fracture was found in 9 mm sections for each. Conclusion: Considering the limitations of in vitro studies, we can conclude that all rotary file systems used in this study led to dentinal micro-crack formation in roots. The ProTaper Universal file system caused more dentinal micro-cracking than did the ProTaper Next and Reciproc file systems.

Resistance to vertical root fracture of apicoected teeth using different devices during two root canal irrigation procedures

2018 ◽  
Vol 33 (8) ◽  
pp. 1685-1691 ◽  
Author(s):  
Ferhat Ayrancı ◽  
Leyla Benan Ayrancı ◽  
Alper Özdoğan ◽  
Serkan Özkan ◽  
Mutlunur Önder Peker ◽  
...  
Keyword(s):  
Root Canal ◽  
Root Fracture ◽  
Canal Irrigation ◽  
Vertical Root Fracture ◽  
Root Canal Irrigation

scholarly journals Vertical Root Fracture in Non-Endodontically and Endodontically Treated Teeth: Current Understanding and Future Challenge

2021 ◽  
Vol 11 (12) ◽  
pp. 1375
Author(s):  
Wan-Chuen Liao ◽  
Chi-Hung Chen ◽  
Yu-Hwa Pan ◽  
Mei-Chi Chang ◽  
Jiiang-Huei Jeng
Keyword(s):  
Root Canal ◽  
Case Reports ◽  
Case Series ◽  
Bone Defects ◽  
Predisposing Factors ◽  
Diagnostic Methods ◽  
Endodontically Treated Teeth ◽  
Root Fracture ◽  
Vertical Root Fracture ◽  
Bony Destruction

A vertical root fracture (VRF) is a complex complication that usually leads to tooth extraction. The aim of this article is to review the prevalence, demography, distribution, diagnostic methods, etiology and predisposing factors, clinical features, radiographic characteristics and treatment strategies of VRFs in non-endodontically treated teeth (VRFNETT) and endodontically treated teeth (VRFETT). Search terms for each subject related to VRFNETT and VRFETT were entered into MEDLINE, PubMed and Google Scholar. Systematic reviews, retrospective cohort studies, demographic research, clinical studies, case reports and case series were reviewed. Most of the VRFs were found in patients older than 40 years old. Older populations were discovered in the non-endodontically treated VRF group when compared to the endodontically treated VRF group. Male patients were found at a greater prevalence than females in the non-endodontically treated VRF group. The initial occurrence of a VRF may accompany radiolucent lines within the root canal, unusual space between the canal wall and intracanal material, a widening of the PDL space along the periradicular surfaces, angular bony destruction, step-like bone defects, V-shaped diffuse bone defects, or root resorptions corresponding to the fracture line before the clear separation of the fractured fragment. The indicative clinical and radiographic signs of VRF included a coronally positioned sinus tract, deep-narrow periodontal defects, the displacement of a fractured fragment, periradicular radiolucent halos and the widening of the root canal space. Interestingly, VRFNETT are more often observed in the Chinese population. Some patients with multiple VRFs were observed, suggesting possible predisposing factors in genetics and tooth development. The management of a VRF usually involves a multidisciplinary approach. The common distribution and features of VRFNETT and VRFETT were elucidated to facilitate recognition and diagnosis. Besides extraction, variable therapeutic schemes, such as the repair of the VRF, root amputation and others reported in earlier literature, are available. A long-term prognosis study of the various therapeutic strategies is needed.

scholarly journals Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength

2014 ◽  
Vol 22 (3) ◽  
pp. 165-173 ◽  
Author(s):  
Marília Pivetta RIPPE ◽  
Manuela Favarin SANTINI ◽  
Carlos Alexandre Souza BIER ◽  
Paolo BALDISSARA ◽  
Luiz Felipe VALANDRO
Keyword(s):  
Fracture Strength ◽  
Root Canal ◽  
Root Canal Preparation ◽  
Root Fracture ◽  
Mechanical Cycling

scholarly journals Root fracture resistance test of cast post using seat and non-seat preparation design in central maxillary incisor

2009 ◽  
Vol 21 (2) ◽  
Author(s):  
Rifki Kania Pramanik ◽  
Gantini Subrata ◽  
Erna Kurnikasari
Keyword(s):  
Root Canal ◽  
Fracture Resistance ◽  
Testing Machine ◽  
Maxillary Incisor ◽  
Root Canal Preparation ◽  
Average Force ◽  
Root Fracture ◽  
Significant Difference ◽  
Root Fracture Resistance ◽  
Preparation Design

Post-placement is one of the treatment plans supporting the success of a restoration. The design of root canal preparation is a factor in the success of post-use. The purpose of this study was to investigate the root fracture resistance of the root canal preparation for cast post with a seat and non-seat preparation. The study was a laboratory experimental study using 20 upper central incisors that met the criteria in the study. Ten incisors were prepared using seat design while the other ten were prepared using non-seat design. Then tested the compressive test by Universal Testing Machine with test speed 0,5 mm/min. The results of the fracture strength were analyzed using t student statistical test. The analysis showed a significant difference between the non-seat group and the seat group (α=0.05). The average force in the non-seat group was 852.27 N with a standard deviation of 112.6 N while the seat group showed a value of 495.78 N and 82.90 N, respectively. It was concluded therefore that the root fracture resistance in the non-seat root canal preparation design was higher than the seat preparation design.

scholarly journals Effect of Super-Bond C&B and self-adhesive dual-cured resin cement on the fracture resistance of roots with vertical root fracture

2019 ◽  
Vol 13 (2) ◽  
pp. 153-157
Author(s):  
Ezgi Doğanay Yıldız ◽  
Hakan Arslan ◽  
Nilay Ayaz ◽  
Mustafa Gündoğdu ◽  
Alper Özdoğan ◽  
...  
Keyword(s):  
Root Canal ◽  
Fracture Resistance ◽  
Resin Cement ◽  
Control Group ◽  
Human Teeth ◽  
Root Fracture ◽  
Vertical Root Fracture ◽  
Root Canals ◽  
Chi Squared ◽  
Post Hoc

Background. Vertical root fracture might occur during root canal preparation, obturation, post procedures or endodontic treatment. Methods. Fifty-four single-rooted human teeth were decoronated to obtain a standardized length. The root canals were enlarged up to #50 and obturated with gutta-percha and root canal sealer. Eighteen teeth were used as a control group, and vertical root fracture was induced in the remaining teeth. The samples were randomly divided into three groups, as follows: control group (without vertical root fracture), Super-Bond C&B group (fragments were attached with Super-Bond C&B), and self-adhesive dual-cured resin cement group (fragments were attached with self-adhesive dual-cured resin cement). Each specimen was subjected to a fracture resistance test, and data were statistically analyzed using chi-squared test, one-way ANOVA and post hoc Tukey tests (P=0.05). Results. The fracture resistance values of the control and Super-Bond C&B groups were higher than those of the self-adhesive dual-cured resin cement group (P<0.05). However, there were no significant differences between the control and Super-Bond C&B groups (P>0.05). Conclusion. Within the limitations of the present study, Super-Bond C&B was beneficial in obtaining higher fracture resistance in endodontically treated roots with vertical root fracture.

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